Researchers: Lancing Practice Can Impact Results in All-DRI Steelmaking
01/05/2018 - They say timing is everything. And in electric arc furnace steelmaking, a matter of a few minutes apparently can impact yields, according to a team of university and industry researchers.
In a new paper, the team, building on previous work related to electric arc furnace steelmaking with direct-reduced iron, explores the benefits of optimizing the lancing practice at the beginning and near the end of a heat.
"Control of oxygen lancing is critical to avoiding iron yield losses in the all-DRI-fed EAF,” the team writes. “This is particularly important early as well as late in the heat. In addition, reduction of residual slag FeO in the hot heel in between heats contributes to yield improvement as well."
Their paper, "Improvements in Yield in an All-DRI-Fed EAF from Minimization of FeO Generation During Melting as Well as Post-Reduction of FeO From Residual Slag," appears in the January 2018 issue of AIST’s Iron & Steel Technology magazine.
You can read the full paper here.
"Control of oxygen lancing is critical to avoiding iron yield losses in the all-DRI-fed EAF,” the team writes. “This is particularly important early as well as late in the heat. In addition, reduction of residual slag FeO in the hot heel in between heats contributes to yield improvement as well."
Their paper, "Improvements in Yield in an All-DRI-Fed EAF from Minimization of FeO Generation During Melting as Well as Post-Reduction of FeO From Residual Slag," appears in the January 2018 issue of AIST’s Iron & Steel Technology magazine.
You can read the full paper here.
